Emergency-brake.



No. 836,982. PATE-NEED Nov, E?, 190e.

G. MACLOSKIE. EMERGENCY BRAKE.

APPLICATION FILED MAB.. Z1, 1903. RENEWED. MAIL 7, 1996.

2 SHEETS-@HEBT l.

PATBNTBD Nov. 2v, i906.

G. MACLOSKIB. EMERGENCY BRAKE. A'PPLIGATION FILED 31.91.21, 1903. RENBWBD MAR. 7, 1906.

2 SHEETS-SHEET 2.

Fig. lo.

George mclclokie.

Wffvegases.

l fm1-T131) STATES PATENT OFFICE.

GEORGEMACLOSKIE, OF 'sCHRNECTaDn NRW YORK, AssiCNOR To GENERAL ELECTRIC COMPANY, A CORPORATION OF NRW YORK. f

` EMERGENCY-BRAKE.

-Specizlcationof Letters Patent. Patented Nov. 27, 1906. i Application led March 21, 190'3. Renewed March 7, 1906. serial No, 304,775.

:loaZ 1fwhom it may concern: positions. Figs. 6 and 7 are respectively 55 1 3e'1t known' that I,GEORGE MAoLosKIE, 'a" side and front elevations of the emergencycitizen'. of the .United States, residin at 'valve and the actuating mechanism therefor, Schenectadi, 'county of Schenectady,' tate on a larger scale. Fig. 8 is a section through 5 of New Yor have invented certain new and the emergency-valve on the line 8 8 of Fig. 6.

rov'ements 1n Emergency-Brakes, Fig. 9 is' a section through the emergency- 6o of whlcht e following isa specification. valve casing onthe line 9 9, Fig. 8, and Fig.

My invention relates 11oimprovements in 10 is a diagrammatic? representation 'of 'a means for automatically controlling motors straight air-brake system to which my into and power-actuated :brakes in case of an -vention is applied. r

emergency,'and`is intended for use'especially Referring now to .the drawings, A re re- '65' in connection with'electrically-propelled vesents the back of a motor-controller/casmg, hJcles or 'trains employin -`a' braking system and Ethe operating-handle fo'r the controller- -actuated by compressed uid' cylinder B within said casing. The conx5 "It has heetoforelbee'n pro bsed to provide -troller-cylinder B carries the usual contactg5 kee' thevalve 'close controllers withemer 'encyrake ap aratus segments b and is geared by cog-wheels. C C `7e including a valve 4w ch is normal y. heldv to 'a shaft D, which-runs up into the hub e of v closed against thetensin of a'spring and the. -thefOperating-handle E. The hub' is rotatapressure in the system by means of 'mechanble in an opening in the cap-plate A of the zo 18m' associated Withthe'controller. In this casing-Fand fastened to the shaft D. by

.prior "arrangement when a comparativelyv meansof a set-screw d. Rotatably mounted 75 arge volume of .air istonbe exhausted, reon the A shaft D is a sleeve F, maintained quil-'ing a. large' opening in' the emergencyyiel 'ly in its normal position by a helical valve, considerable ower is necessary -to 'spring which is' connected at one end to 2 the-sleeve and at the otherend to the shaft, he object of' the. present invention is to preferably by means of the collar D', secured 8o provide.. jmeans' .whereby 'the mainivalve to said shaft. The sleeve F carries acam f openinginthe 'emergency a paratus may be 'and lug f Fig. 2, the latterserving as a stop givenany desired area, W 'le atthe same by abutting against a stationary lug a. on the getinte'. the power which must be spent in the. underside of the' cap-plate. 1

` controller for effecting Vthe. prOJperoperation Connected Withthe knob E` is a pine', 85

of 'the' valverelatively small.l "I accomwhich rests upon the long'arm of the lever plish this end by rovid' a normally closed E2, fulorumed on the operating-handle E. A relay-valve, whic 4contro s vthe Operation of' spring E3 bears on the short arm of the lever 35 i the brakes, together with a small normally, and keeps the pin and knob normally raised.

closedcontrolling-valve,f which when oper- A toothed rocker E4 also is 'fulcrumed on the 9o ated byv the mechanism in' the controller operating-handle, and engages with the short causes'therelay-- alve tooper'ate'to .perform arm of Vthelever E2.' The otherend of the ,its intended function. rocker E"l engages with a lug on a bolt G, 4o The present invention also'comprises eerslidable in 'a keyway 1n the shaft D and,

v.tail'l novel 'features' of' 'constructlon to be adapted to enter a' notch in the upper end of 95 hereinafter described,and particularly point- V the sleeve F and lock said sleeve tothe shaft.. .-'edout inthe' claims." lThis Will occurdwhenlever thek 1 1ob E is d a- I" Y .the accom an ,-drawings, whic pressed, provi ing t e'.contro er 1s 1n' e a5 illustrate thepregerrgdnmbodiment Ofxny off, position. The sleeve F 1s adapted to f fnvention,"Figure l is afront elevation of a be rotated. with the shaft D solong'as res- 101Dv ;A 'specicfor'm of-'motor-controller embodying sure is maintained on the broad knobv a', onv '-:my invention,.the casing-'cover being re1- which the palm of the motormans hand is .moved and certain'partsbein'g'shown broken adapted to rest whilethe controller-handleis `5o away and in' section',l AFig. .2 is a sectional. being operated..

" 'plan view onthe line 2 2',`Fig. 1. Figs. 3, 4, ./djacent to the shaftD withm the con-' and 5 aresectionalplan views 'on the line 3 3 :trollen-ijsje rock-shaft H, carrying .an arm of 1', showingtheemergency-valve-'op-g which-bearsgagalnst lthe cam shownzin Hating-mechanism inits different operative i Fig .-2.,fwhereby1the movement' of. s aidcamy led spring-contact ingers1 Which cooperate trein-pipe' to atmosphere, .and when the 4 rocked.

will rock the shaft H. Mounted on the rock-l shaft H is an arm' hf, carrying a block of insulation H,onWhich are mounted tWo'connect- With stationary conta'cts and form therewith a double-pole switch I for closing andv opening the power-circuit when the shaft H is RS represents the reversing-switch, W an interlocking device between said reversingswitch and the sha-ft D', and L indicates the -'ismating-casing containing the blow-out coil, `or the switch I.

Mounted'within the controller-casing and operatively'connect'ed in the air-brake system is an emergency-valve Which is adapted to apply the brakes in case the controllerhandle is releasetfin any of its operative positions. To apply the'brakes whenlthe socalled automatic air-brake systenris employed, the emergency-valve exhausts -the .straight air-brake system Ais employed it connects the source of compressed-fluid supply to said train-pipe.

I have chosen to illustrate my invention in t.

connection With the straight air-brake sysl tern, and, in Fig. 10, 12 indicates the trainpipe, which is connected to the brake-cylinder 13 and is also connected through the pipes 14 and 15 by Way of the engineers valve 16 and the storage-reservoir 17 to the source of compressed-fluid supply. (Here shown as a motor-driven air-compressor 1S.) The emergency-valve casing l? is connected to the pipes 14 and 15 by means of the-pipes 19 and 20,` respectively. The valve-casing l? contains two valves, a relay-valve 21 and a controlling-valve 29. The valve 21 is adapted to control the communication. betweenv the pipe 20 and the pipe 19 or, in other Words, to control the communication/ hetween the source of compressed-fluidsuppl)v and the train-pipe in the straight air s vstem. (Shown in Fig. 10.) This valve is adapted to rest upon the valve-seat 22 and is normally maintained upon said seat by means oi the compressed fluid from the source ot tluid supply assisted by the spring 23. The compressed iuid enters the chamber.y 2-1 above the valve 21 Jfrom the chamber 26 through the small passage-Way 25 in said valve 21 Communicating With the chamber 24. hv means oi the passage-Way 27, is an auxiliaryvalve chamber 28, containing the valve 2t'. which controls thel communication bctivccn the chamber 2-1 and the atmosphere through the exhaust-port 30;," The said valve 29 is normalb maintained on its seat31 h v means oi Huid-pressure, assisted by the spi-in;r Z22. The compri :sed 'Huid enters the chamber lo behind the pistonla attached to the vali@l Lft through said passage-way 27 and the port :5I-3 in the valve 29.- Attached to the valve 2h is llarfgroove 35. When' the spint.. l

inwardly against the action of the spr and the pressure ot the fluid ivi thi"1 the ber [thereby raising the vaive- 'P seat, the cliamberZ- 'is exhausted to t pheie through the passage-Way Y liaust--port 30, and since the port or il Way 25 in the valve is smalh com` With the eXl'iaust-port 3U, the prts'ure i chamber 26 Will openthe said lve f the action of the spring 24 and eonnef. he pipe() 'with the pipe 19 through the chambers 26and 3G. Such a construction shows a verysmall normally closed controlling live .28 to be used` which will require a co;

tively small pressure on the spindle 34 t applied quickly.

T he mechanism 'for operating the sa oontrollir'ig-valve Will' non' be desr ibed Loosely mounted on the shaft D is a cotlar lc, carrying the arm o, to the outer end ot' which is fastened one end o1 a tension-spring 0"; lhavin;7 itsvother end 'fastened to the pin. p. mounted on the back *t ot' the c'oi t" casing. rThis arm o at'lapted to i the valve-spindle 34 and open valve is prevented' from doin;l so by the arm in;y the time that the controller-han any oi its operative positions Ywith thcr pin t" depressed andthe rock-shaft li' rotated in such a manner as to close the cut-out switch l. The outer end ol' this arm 7i" is curved tjlounivard and is adapted to strike the projection o2 on the outer end vof the arm o. but out of engagement with said prodiection when the controller-handle in its oli position or When the conMoller-handle is'in any otl its operative positions after the lmoh C has been released bv thc operattir. The face ol` the projection of, against which they downwardly-curvcrl end ot thc arm i# st i inclinedl` so :is to allow said projecti slip by the end oi' said arm when relc said arm. "lie spring o is prevenre moving tit arm o into engagement 2% spindle El when thc contr:)ilcr-lmndh is in its oil. position lrv :i pin p'. This pin In is carried on the under side oi the collar i9 and is shown in dotted lines, Fig. 3, in engage-- ment vwith said arm. in order to obtain a neat and compact construction and in order to' adapt this type olh emergency-valve ami the operating mechanism thcrcfor espcciall)` to the specific form ol' controller' herein shoivn and described. thtl rock-.shalt isbent :wound the valve-casing l) :it l if.

,in the operation ol this contro-iler and cm1-igencv-vulve when thc motornmi@pinces his humupon the linoh 1loi thc operatinglmmilc l he depicsscs thu push-piti i lort'cs the bolt (i down into thc notch in thc sleeve l". The rotation ol` the handle opera spindle'S-l, having?r fori-ned thereon an armuatcs'lirst to close the cut-out sivitch h v oplng mechanism isV Fig. 3, the arm a being maintained out of engagement with the valve-spindle 34 by means of the pin p. As the controller-handle is moved forward positions with the` sleeve F is moved forward, as is also the collar D on the shaft D. This moves 'the pin pf out of engagement with the arm o and allows the said arm to move toward the valve-spin- Alle 84. -Thearm o is .preventedfrom striking 4the valve-spindle,

however, bythe arm h2, which controller-handle is'moved into 'thepathof the stop a on thecap-plate. Inthis posi,

the projection 02 on the arm o.

motorman re-4 moves his hand from the handle, the sleeve F is unlocked and the spring F instantly turns the sleeve backwarduntil the lug f -strikes tion of the sleeve the armh is out of-engagementwith the camyr and the cut-out'switch is thrown open by means of the spring h3. Simultaneously with the operation 'of said switch, which isopened whenever the pressure isrem'oved from the knob-E', as `above impinges the valve-spindle 34 through the. action ofthe spring o." The valve 29 isv thus' described, the arm h2, carried bythe rock shaft, H, is moved out of engagement'with theprojection o2 and the end ofthe arm o opened, .thereby eXhausting the compressed fluid from the chamber 24 andiallowing the valve 21 'to' be opened by the pressure of the iuid in the chamber 26,' as above described. 'This position of the valve-actuating mechanism is illustrated in Fig. 5. `The brakes vare now appiedand the motor-circuit is broken` -In order to release the brakes'independent of the operation of the engineers valvel and to. v

reset the emergency valve actuating mechmism, it is merely necessary to turn the con` troller-handle back toits initial or ofiv posi-l p into tion, thereby again bringing lthe pin engagement with the arm aand restoring the said mechanisinto Vthe position shown in Fign.l

In the straight v,air system the source of compressed-fluid supply is normall disconnected from the train-pipe and t entrainpipe is nor-mall connected to atmosphere through a smail `exhaust-pot inl-the engineers valve. Therefore .when the airbrakes are applied by means .of the operation of the emergency-valve a slight leaking will take place through said exhaust-port in the engineers valve; but this leakage will not be sufficient to render the emergencyfvailve-.im'

o per'ativeto apply the' brakes- E in the position shown in.

through its operative the type of. controllergenera knob E depressed the in the operative positions of the This position- 4through the train-pipe-it is evident that v it Lof, the valve-actuating mechanism is shown' in,Fig. 4. If yat any time the shown and described, but maybe the operat. ing-handle .for the. engineers valve orv .other handle adapted forv the purpose.-

.said controller-handle -adapted` to `maintain `tive at the initial or l parts of themotor-controller herein-.shown and described forms no part of'my present invention and isA not herein claimed, s`i`1 1c e it forms the subject-matter` of a copending apf-v plication of Frank E. Caseerial N o. 7 5,488, iiled Septemberl', 1901. Itis merelyillusv trated and described here to -more clearly show how my invention may be aplplied to ly emp oyed as,

a master-controller in train-control systems. It will be readily understood that the i11- .vention is not'limited in its application'fto'- any s ecicform .'of motor-' contr'oller. Alt ough I have shown and describedmy invention in connection with a straight airbrake systemthat is, a system in .which the engineers valve admits press ure directly'from a storage -cylinder .to the 4brake-cylinders system, in which case the emergency-valve'.

lwill be arranged to discharge the train-pipe 4instead of toadmit air from the storage-cylinder thereto. .It willalso be understood that the controle ling-handle from `which the emergency-valve is operated is-not necessarily'the operatinghandle of the motor-controller, asherein any I a1m"\to coverinthe claims hereto ap'# pended allmodiieations both ofthe system and of the' apparatus. hereindisclosed which do ynot -involve a departure and scope of my invention.

What I claim as new, and desireto secure asf vfrom vthe spirit i by Letters Patentoi" the'United States, is-

` .1. In combination, a mot5er-controller,-i.a`

handle for operating said controller, a brake actuated by iiuid-pressure a 4valve vfor controlling thefoperation of said brake, means. independent of-ithe mechanism operated by -said controller-handle adapted tojmaintain--r said.valve"'closed,.and means adapted to open said valve when the controller-'handle'is re-- leased bythe operator in any of its operative positions.` g 2.' Infc'ombination, a motor-controller, a.

handle for operating said controller, iai. brake irs actuatedfby fluid-pressure, avalvefor controlling the application of said brake, means independent of the mechanism operated by said valvexin its vclosed position, means for o ening said valveyvhen-the controller-han-4 di)e is released 'by the operator, and means for reo rendering said valve-opening means inoperafee,

Aawake means independent of tlefniechanism vQpei-"ated `by said handle for maintaining said, valve normally closed and means controlledv from said handle for opening the motor-rirvalvewhen the controller-handle is released iljiy the operator in any 'of its operative positions'. l In-A combination, a motor-circuit., a controller in said circuit, a handle for o eratinfbT said'controller, a. power-actuated irake, a valve for controlling the .application of saidl brake, means 'independent of the mechanism operated by said handle lfor maintainingsaid i5 valve "normally closed, means controlled from said handle'for opening the motor-circnit and` for l simultaneously opening' the 'valve When'the controller-handle is released `by the operatoria any of its operative posieg ferons-and nieans\for automatically rendery ing's'aid valve-opening means inoperative 'at- 'fluid-pressure, a relay-'valve adapted to con.-v

trol theapplicationof said brake, a control- 'ling-valveadapted t control the operationn 35 oi? said' relay-valve., a' controlling-handle,

wmansfor operating said controlling-valve means forrestoring lsaid relay-valve i. t-sj normal position toallow said brakes to la'e-a'ifel'eased when the controlling-handle is lnfoved'into a predetermined position.

,Y ,7; 'In-combination, a controllerhaving an operating-handle, apower-actnated brake, a

"neans' associated with said handle for carstlie; operation ot sai-fl controlling device ipon the 'release of the handle by the operitOK-i i 4 i vr8: In combination, a cont-roller lia-vingen jperating-handle, a power-actuated brake, a `ifelay adapted to'control the operation of said brake, a controlling.,r Vdevice for said relay, means associated ivit-li said handle for causine' the operation of said controlling device in the brake-applying direction 4upon the release of the handle by the operator, e nd means associated with the controllerfor carsing; the operation of sa id controlling evice in the b're` keireleasing direction iipontlte retirn of the conpreller to the "tof" position.

In combination, a controller having an lgiperating-handle, a iitid-pressifre brake, a relay-valve adapted to control the applicationet said brake, a controlling-valve arrangedtio if cuit and for; simultaneously opening the enthe said handle is released by the opera'- elayadapted to control the operation of said flerako, acontrolling device for sai-il rela-y, and" control the operation of said relay-'valve ,and means associated ivith said controller-handle and coopera-ting with said controlling-valve to 'canse the relay-.valve to operate upon the release of said handle by the operator.

1,0. ln combination, a controller having an operating-handle, a. Huid-pressure brake, a controlling-valve arranged to control the operation of said relay-valve, means associated with said cont-roller-lianille and cooperating with said controller-valve to canse the relayvalve to operate to apply the brakes upon release of the controller-handle, and means associated with the controllerand cooperating with said controlling-valve to cause the relay-valve to operate to release the brakes when the controller is returned lto its "oi position`. 1l. In combination, a motor-controller, a handle for ope ating said controller, a poweractuated brake, a relay-valve for controlling the application of said bra-ke, a normally closed controlling-valve for controlling, the

. operation of said relay-valve, means for opening said controlling-valve, and means adapted torender said valve-opening means inoperative until the controller-handle has been released bythe opera tor,

' "12. In combination, a iiioto1co'iit:roller, a power-actuated brake, a relay-valve forcentrolling the application of said brake, a normally closed controllii'ig-va-lve for controlling the operation of said relay-valve,nieans foropening said controlling-valve, a cnt-out switch for opening the motor-circuit independent of the cylinder ot'saidcontroller,

and meansfor rendering? said valve-opening means inoperative so long as the cut-out switch remains in its closed positionl '13. ln combination, a motor-controller, an operating-handle for said controller, apoiveractuated brake, :i re 1y-valve for controlling vthe application of said brake, anormally closed controlling-valve. for controllingr the operation of said relay-valve, means for opening said controlling-valve, a cnt-out switch for opening' the motor-circuit independent of the cylinder of said controller, and means for causing said cnt-out switch and said valveopening means to operate when the controller-handle is released by the opera-tor in any of its opera-tive positions` 14. ln combination, a controller, a handle for operatingr said controller, a. brake, la member for controlling.;l the application ot' said brake, means independent of the mechanism operated -by said controller-handle adapted to maintain 'said member in an inoperative position, and means adapted to move said member into its brake-applying position when the coinitroller-handle is released by the operator in any ol its operative positions.

l5. In conibiiiation` a motor-controller, al

handle for operating said controller, a brake, brake-.controlling means 4coi'nprisiner a mem- IOS IXO

eeegeee ber for eontrolling the eppieetion er said brake, means independent of the mechanism operaie@ by seidv eonbroilehendle adapted to maintain said member in its inoperative position, means formeving said member te its breke--epplying postienfwhen the een troier-hm1die is released by oiie Operator, and means for rendering the i'akewomroiiing means inoperative et the initie/1 er eii' pesiiion of the controller.

16. in eem'binaftin, ai meter-cireifit,v a. eeritroiier in `seid circuit, e handle for operating said controller, apowerectueled brake,'a member for cbntroiiing the emcetin of seid brake, means independent efmeeireniem operated by said handle for maintaining said member in its inoperative position, and means controlled from said handle for openig the moteeircuit and for simultaneously grieving seid member 'te its brake-applying peei'tieu when' the controller-handle is reieesed by the operator in any of. its operative positieve.

En witness 'whereof have hereunto Set my heard this 20th day of March, i903.

GERGE IVACLSE.

Witnesses BENJAMEN B. HULL', HELEN ORFORD.A 

